Question

Find the greatest common factor for 15,30,50

a
5

b
15

c
2

Answer 1

To find the greatest common factor (GCF) of the numbers 15, 30, and 50, we can list the factors of each number:

- Factors of 15: 1, 3, 5, 15
- Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
- Factors of 50: 1, 2, 5, 10, 25, 50

Now, we identify the common factors among the three numbers:

- Common factors of 15, 30, and 50: 1, 5

The greatest common factor is the largest of these common factors, which is **5**.

Therefore, the answer is:

**a) 5**